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* Objects/classobject.c, Include/classobject.h: added __getattr__

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and __setattr__ support to override getattr(x, name) and
	setattr(x, name, value) for class instances.  This uses a special
	hack whereby the class is supposed to be static: the __getattr__
	and __setattr__ methods are looked up only once and saved in the
	instance structure for speed
This commit is contained in:
Guido van Rossum 1994-08-12 12:49:46 +00:00
parent e025e31de6
commit e149fa2a1e
2 changed files with 111 additions and 17 deletions
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12
Include/classobject.h
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@ -30,6 +30,12 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
/* Class object interface */
#ifdef WITH_THREAD
#include "thread.h"
#else
#define get_thread_ident() 1L
#endif
/* Revealing some structures (not for general use) */
typedef struct {
@ -43,6 +49,12 @@ typedef struct {
OB_HEAD
classobject *in_class; /* The class object */
object *in_dict; /* A dictionary */
object *in_getattr; /* A method or NULL */
object *in_setattr; /* A method or NULL */
long in_ident; /* A thread ident or 0 */
#ifdef WITH_THREAD
type_lock *in_lock; /* A lock or NULL */
#endif
} instanceobject;
extern typeobject Classtype, Instancetype, Instancemethodtype;